Plazmaman’s SR20 S13 (Red Top) inlet manifold is designed with curved inlet runners, which allows for modification to the runner length to suit different applications as these engines are commonly transplanted into older vehicles. As these older engine bays are quite tight, the Plazmaman S13 SR20 Inlet has adjustable runners. We can simply shorten, or lengthen the runners to suit your conversion or needs. We can tack together a setup and send to you for test fitting first. Please Contact Us for further information.
We highly recommend the use of our Billet 66mm or 72mm throttle body for street/strip/drift applications, or for high end race vehicles, the 85mm is recommended. This manifold is supplied complete with a dual feed fuel rail, with -8AN holes each end.
These manifolds can be supplied in 3 finishes, Raw, Polished, or powercoated Black, for the stealth look.
As with all Plazmaman inlet manifolds, these are packed with many features such as:
- Built-In Ram Tubes
- 6061 T65 Aluminium.
- O-ring port seal design.
- Precision CNC machined billet base, with hand made 3mm smooth design plenum dome.
- Professionally Tig welded in house by our highly experienced fabricators.
- Ergonomic appeal and lifetime structural guarantee.
*** PLAZMAMAN also has a range of Flow matched fuel injectors available in the Fuel System Section of this online shop – these will make a great addition to your intake purchase . Any Injector you can not see please feel free to email/contact us, as we can source them ***